North-western Cambodia is a region of Cambodia.
Much of the southern part of this region is very flat and fertile. The north is dominated by the Dangrek Mountains which form the natural barrier btween Cambodia and Thailand.
The region is served by Siem Reap - Angkor International Airport  (IATA: REP | ICAO: VDSR) which has has frequent domestic flights from Phnom Penh and is internationally linked from the following destinations:
The region is linked by road to Thailand. This road was completely re-surfaced in 2009 and runs from Siem Reap to Sisophon in the far north est of the region where it then crosses into Thailand at Poipet. This road journey takes about three hours.
The road from Phnom Penh to Siem Reap is much travelled and a bus journey will take 5 to 7 hours.